HK Rifle / SMG Parts

HK Rifle / SMG Parts

Elevate Your HK Rifle with Premium Parts – MP5, HK416, SP5, and More!

Enhance your HK rifle with top-notch parts and accessories. From HK MP5 and HK MP5K to HK SP5 and HK UMP or HK USC, we offer a vast selection. Discover high-quality magazines, binary triggers, stocks, grips, barrels, handguards, sights, and more for your firearm. Whether you own an HK416, HK SP5K, HK G36, or HK MP5 22, we have the Heckler and Koch rifle parts you've been looking for. Shop now to upgrade your rifle to perfection.

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  • Out Of Stock
    New - H&K HK G36/SL8 Extractor Rubber Pin - HKP-02162

    HK G36, SL8 Extractor Rubber Pin

    H&K Heckler & Koch

    $0.00
    Heckler and Koch HK G36 and HK SL8 Extractor Rubber Pin
    HKP-02162
    $0.00
    Out Of Stock
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  • New - H&K SL8 (5.56/.223) Catch - HKP-16349 HK USC, SL8 Locking Lever Catch
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    HK USC, SL8 Locking Lever Catch

    H&K Heckler & Koch

    $7.95
    H&K SL8 (5.56/.223) Catch
    HKP-16349
    $7.95
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    $7.95
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  • Out Of Stock
    New - GSG9 HK G36 (5.56/.223) Complete Bolt Head - HKP-18983 HK G36 Bolt Head, Complete

    HK G36 Bolt Head, Complete

    GSG9

    $0.00
    G36 Bolt Head - Complete - USA G36 Bolt Head allows the use of double stack magazines in your SL8 conversion to high capacity G36, Magpul or AR15 Magazines. Perfect for the G36 conversions or for a spare part to have on hand. Made in the USA from 9310,...
    HKP-18983
    $0.00
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  • New - H&K G36 (5.56/.223) 10 Round Factory Magazine - FDE - HKP-18727 HK G36 Magazine - 10 Round - Factory - FDE
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    HK G36 Magazine - 10 Round - Factory - FDE

    H&K Heckler & Koch

    $87.95
    HK G36 10 Round Magazine in Flat Dark Earth (FDE) Compatible With: G36 G36K G36C Double Stack Capacity Magwell Converted SL8's   Specifications: Capacity: 10-rounds Condition: New, rare find Manufacturer: HK Germany
    HKP-18727
    $87.95
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  • New - H&K UMP (.40 S&W) 30 Round Magazine Housing - HKP-16369 HK UMP Magazine Housing - 30 Round - .40 S&W
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    HK UMP Magazine Housing - 30 Round - .40 S&W

    H&K Heckler & Koch

    $69.95
    New HK Heckler and Koch .40 S&W 30 Round Magazine Housing for HK UMP New HK German UMP .40 30 round factory magazine body. A great spare part in the event that your mag body is damaged or cracked.
    HKP-16369
    $69.95
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  • New - H&K UMP (.40 S&W) Magazine Follower - HKP-01901
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    HK UMP Magazine Follower - .40 S&W

    H&K Heckler & Koch

    $9.95
    HK UMP 30 Round Magzine Follower .40 S&W
    HKP-01901
    $9.95
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    $9.95
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    New - H&K UMP (.40 S&W) Magazine Locking Plate - HKP-16340 HK UMP Magazine Locking Plate - .40 S&W

    HK UMP Magazine Locking Plate - .40 S&W

    H&K Heckler & Koch

    $9.95
    H&K UMP (.40 S&W) Magazine Locking Plate German HK.
    HKP-16340
    $9.95
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  • New - H&K UMP/USC (.40 S&W/.45 ACP/9mm) Hammer Spring - Right - HKP-01892
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    HK UMP, USC Hammer Spring - Right

    H&K Heckler & Koch

    $14.95
    HK UMP & USC Right Side Hammer Spring For Lowers
    HKP-01892
    $14.95
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  • On Sale
    New - MM HK UMP (.40 S&W) Conversion Kit - HKP-18754 HK UMP Caliber Conversion to .40 S&W Kit - 7.87" Barrel - 30 Round Magazine
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    HK UMP Caliber Conversion to .40 S&W Kit - 7.87" Barrel - 30 Round Magazine

    Michaels Machines

    Now: $849.95
    Was: $999.95
    HK UMP 40 Caliber Conversion Kit With this UMP Conversion kit, UMP .45 sub guns can be converted to .40 caliber. Machined bolt carriers are available for USC/UMP conversion sub guns. This is a simple drop-in conversion. The time required to change...
    HKP-18754
    Now: $849.95
    Was: $999.95
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  • On Sale
    New - GSG9 UMP 9mm Barrel - Threaded 1/2x28 - 3-Lug - HKP-02281
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    HK UMP Barrel - 9mm - Threaded 1/2x28 with 3 Lug

    GSG9

    Now: $259.95
    Was: $349.95
    GSG9 UMP (9mm) Barrel - Threaded 1/2x28 - 3-Lug This barrel is the perfect addition to your UMP conversion as it includes the 3-lug and threaded 1/2x28 end of the barrel for use with suppressors or factory HK 3-lug flash hiders. Specifications: Threaded...
    HKP-02281
    Now: $259.95
    Was: $349.95
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  • Out Of Stock
    New - HKP PTR PDW (7.62x51/.308) Complete Bolt Group - HKP-17389 HK PTR PDW Bolt Group - Complete

    HK PTR PDW Bolt Group - Complete

    HKP HK Parts

    $379.95
    US Made PTR Bolt Group Complete Semi-Auto 308. Factory correct bolt head and locking piece for use in the PTR PDW chambered in 7.62X51 or 308. Brand new May 2015 manufacture. This is the correct bolt for all PTR PDW with 8" barrels.
    HKP-17389
    $379.95
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    $379.95
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  • New - HKP HK 91/G3 (7.62x51/.308) Ambidextrous Trigger Pack (0,1) - HKP-17232 HK91, G3 Trigger Pack - Ambi 0,1
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    HK91, G3 Trigger Pack - Ambi 0,1

    HKP HK Parts

    $362.95
    HK Parts and Heckler and Koch 2 Position 0,1 Ambidextrous Trigger Pack for HK91, and HK G3 Finally, a lower cost alternative to the expensive and rare all-German FBI and 0,1 ambi trigger packs.  Each trigger pack comes 100% complete, ready to use...
    HKP-17232
    $362.95
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    $362.95
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